Rupesh Pathak and Vaishali Bhatia Solutions for Chapter: Mental Maths, Exercise 1: Mental Maths Chapter 1 & 2

Allan calculates that the sum of all interior angles of his garden is $3060$ degrees. How many sides does the garden have?

In a village, one of the farmers has a paddy field in the shape of a convex quadrilateral in which two of the interior angles are right angles. If the remaining two angles are in the ratio $2:3$ , find the measure of all the interior angles.

Rithika is a bangle maker. She made a new bangle in the shape of a parallelogram $ABCD$. If $\angle A=\left(4x-20\right)$ and $\angle B=\left(2x+80\right)$, then value of $x=$_____$°$.

Draw the top, front and side views of the following shape:

Draw the top, front and side views of the following shape:

Draw the top, front and side views of the following shape:

Draw the top, front and side views of the following shape:

Draw the top, front and side views of the following shape: